There are 4 types of goods: club goods, private goods, public goods, common goods. They are classified according to whether or not rivalry exists,...

There are 4 types of goods: club goods, private goods, public goods, common goods. They are classified according to whether or not rivalry exists, and whether or not they are excludable. The interesting thing about road systems is that they can fall under all four categories!

Classify each road category:

1. Tolled road with heavy traffic
2. Tolled road with no traffic
3. Public road with heavy traffic
4. Public road with no traffic